Entropy Stabilized Metal Hydrides for Hydrogen Compression

Project Manager: Institut de Chimie et des Matériaux Paris-Est, ICMPE-CNRS, France

LESTE-ENIM coordinator: Prof. Abdelmajid JEMNI

Objective
Entropy Stabilized Metal Hydrides for Hydrogen Compression (ESMH2C) research project proposes to design and build a practical hydrogen compressor based on novel entropy-stabilized multiprincipal element hydrides. The underlying principle of these original materials is that mixing multiple elements at atomic level provides significant entropic stabilization of novel alloys/intermetallics which allows fine tuning of the thermodynamics of the reaction with hydrogen, enhances reversible hydrogen capacity of corresponding metal hydride phases and prevents phase segregation. Moreover, the entropy-related stabilization of alloys improves long-term cycling performance by maintaining highly chemically disordered structures at the atomic level while maintaining the long-range crystalline order. To the best of our knowledge, such a material has never been implemented in commercial hydrogen compressors or other metal hydride related applications.
Despite this challenging objective, the ESMH2C project is expected to make major contributions to advance clean hydrogen compression technologies with diminished dependence on fossil fuels and to promote future international cooperation in this field.

Partners
Partner 1 : Institut de Chimie et des Matériaux Paris-Est, ICMPE-CNRS, France,
Partner 2: Institute for Energy Technology, IFE, Norway,
Partner 3 : Sandia National Laboratories, SNL, USA,
Partner 4 : Ecole Nationale d'Ingénieurs de Monastir, ENIM,
Partner 5: HYSTORSYS, Norway.